Rear Shock Bumper Beta RR 2T 125 20-22, RR 2T 125 Race 21, RR 2T 200 20-22, RR 2T 200 Race 21, RR 2T 250 20-22, RR 2T 300 20-22, RR 4T 350 20-21, RR 4T 390 20-21, RR 4T 430 20-21, RR 4T 480 20-21, RR-S 4T 350 20-22, RR-S 4T 390 20-22, RR-S 4T 430 20-22, RR-S 4T 500 20-22, RX 2T 300 21